CN109488210A - A kind of bilayer drill bit - Google Patents
A kind of bilayer drill bit Download PDFInfo
- Publication number
- CN109488210A CN109488210A CN201811190009.8A CN201811190009A CN109488210A CN 109488210 A CN109488210 A CN 109488210A CN 201811190009 A CN201811190009 A CN 201811190009A CN 109488210 A CN109488210 A CN 109488210A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- drill
- interior
- hollow
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005553 drilling Methods 0.000 claims abstract description 19
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 239000012634 fragment Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 5
- 230000005641 tunneling Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A kind of bilayer drill bit, including interior drill bit, outer drill bit, preceding drilling rod, sleeve, hollow drill and planetary gear.Sleeve covers on the outside of hollow drill, and interior drill bit is spindle, and outer drill bit is the annulus with the indent conical surface.Interior drill bit is located in the middle part of outer drill bit.The front end of drilling rod before interior drill bit is fixed on, the end of preceding drilling rod, which has, intersects cross bar, intersects cross bar and is fixed in hollow drill front inner wall.There is ring gear on outer drill tip inner wall, there is outer gear ring on the outer wall of hollow drill front end, ring gear, planetary gear and outer gear ring form planetary gear train.The double-deck drill bit of the invention also has and drill bit outside the band indent conical surface of interior drill bit cooperation in interior drill bit periphery, in tunneling process, interior drill bit is cut into fragment on rock mass, fragment is ground broken between interior drill bit and outer drill bit later, inside and outside drill bit collective effect, make to enter back into core drilling after the fragment generated in tunneling process is pulverized, blocking hollow drill can be effectively prevent, substantially increase drivage efficiency.
Description
Technical field
The present invention relates to dust suction drill bit more particularly to a kind of double-deck drill bits.
Background technique
Dust suction drill bit is that the fragment after drill bit fragmented rock body can be transported to brill by the hollow drill of drill bit rear end by one kind
Drill bit outside hole.Patent CN2013103218973 discloses a kind of backpitch crushing dust suction drill bit, passes through the wing that backpitch turns
Broken fragment is transported to the horn mouth of drill bit rear end, then is transferred out by the channel of horn mouth rear end.This dust suction
Drill bit is generally only applicable to weak stratum, and when there is larger fragment in rock stratum, it is easy to block horn mouth, cause transfer passage
Blocking.
Summary of the invention
The purpose of the present invention is to provide a kind of separating twices that can carry out to sillar to prevent the double of its blocking drill bit internal channel
Layer drill bit.
To realize the above goal of the invention, technical scheme is as follows:
A kind of bilayer drill bit, including interior drill bit, outer drill bit, preceding drilling rod, sleeve, hollow drill and planetary gear, wherein sleeve
It covers on the outside of hollow drill, hollow drill front end is stretched out except sleeve；Interior drill bit is the spindle with former and later two conical surfaces, outside
Drill bit is the annulus with the indent conical surface, and interior drill bit is located in the middle part of outer drill bit, concave cone in the rear cone bus and outer drill bit of interior drill bit
Face bus is parallel, and the outer diameter of outer drill bit is greater than the outer diameter of interior drill bit, the front end of drilling rod, the end of preceding drilling rod before interior drill bit is fixed on
With cross bar is intersected, intersects cross bar and be fixed in hollow drill front inner wall；There is ring gear on outer drill tip inner wall, it is hollow
On drilling rod front end outer wall have outer gear ring, 2 with upper planet wheel between ring gear and outer gear ring, ring gear, planetary gear and
Outer gear ring forms planetary gear train；Outer chisel edge is stuck between the wheel shaft front end of planetary gear and hollow drill, the wheel shaft of planetary gear
End is fixed in barrel forward end.
Spiral is distributed on former and later two circular conical surfaces of the interior drill bit in technical solution as a further improvement of that present invention
Wing.
Technical solution as a further improvement of that present invention also has drill lip on the spiral wing.
Technical solution as a further improvement of that present invention has backpitch wing on the indent conical surface of the outer drill bit.
Technical solution as a further improvement of that present invention has drill lip on the backpitch wing.
Technical solution as a further improvement of that present invention, the planetary gear are 4, and 4 planetary gears equidistantly divide
Cloth is in the gap between the ring gear and the outer gear ring.
Technical solution as a further improvement of that present invention, the intersection cross bar are two groups, and two groups of intersection cross bars divide in parallel
Cloth.
Compared with prior art, beneficial effects of the present invention: the double-deck drill bit of the invention interior drill bit periphery also have with
The band indent conical surface of interior drill bit cooperation drill bit outside, in tunneling process, interior drill bit is cut into fragment on rock mass, later including fragment
Broken, inside and outside drill bit collective effect is ground between drill bit and outer drill bit, after keeping the fragment generated in tunneling process pulverized again
Into core drilling, it can be effectively prevent blocking hollow drill, substantially increase drivage efficiency.
Detailed description of the invention
Fig. 1 is a kind of sectional view of the double-deck drill bit described in the embodiment of the present invention；
Fig. 2 is the cross-sectional view in Fig. 1 at A-A；
In figure 1 above -2, drill bit in 1-；The outer drill bit of 2-；3- hollow drill；4- sleeve；Drilling rod before 5-；501- intersects horizontal
Bar；6- planetary gear；601- wheel shaft.
Specific embodiment:
The present invention is described further with reference to the accompanying drawings.
Embodiment
As shown in Figure 1, a kind of bilayer drill bit, is axially symmetric structure, including interior drill bit 1, outer drill bit 2, hollow drill 3, set
Cylinder 4, preceding drilling rod 5 and planetary gear 6, wherein 4 sets of sleeve in 3 outside of hollow drill.Interior drill bit 1 is with former and later two conical surfaces
Spiral wing is distributed on former and later two conical surfaces of interior drill bit 1, has drill lip on spiral wing for spindle.Outer drill bit 2 is in band
Concave cone face it is arc-shaped, there is backpitch wing on the indent conical surface, also there is on backpitch wing drill lip.Interior drill bit 1 is located at
Among outer drill bit 2, interior 1 rear cone bus of drill bit is parallel with outer 2 indent cone element of drill bit, and the outer diameter of outer drill bit 2 is greater than interior brill
First 1 outer diameter, the gap between the 2 indent conical surface of interior 1 rear cone of drill bit and outer drill bit are the channel that fragment enters hollow drill 3.
The end of the front end of drilling rod 5 before interior drill bit 1 is fixed on, preceding drilling rod 5 has two groups of parallel intersection cross bars 501, intersects cross bar 501
It is fixed in 3 front inner wall of hollow drill.There is ring gear in outer 2 inner wall at end of drill bit, have on 3 front end outer wall of hollow drill
Outer gear ring.Fig. 2 show in Fig. 1 the cross-sectional view at A-A, 4 planetary gears 6 be equally distributed in ring gear and outer gear ring it
Between, ring gear, planetary gear 6 and outer gear ring form planetary gear train.
When drilling, hollow drill 3 is simultaneously advanced with sleeve 4, and hollow drill 3 rotates in sleeve 4, makes interior drill bit 1 and sky
Heart drilling rod 3 rotates coaxially, and drives planetary gear 6 to rotate by outer gear ring.Planetary gear 6 is fixed on sleeve 4 only due to wheel shaft 601
There is rotation, therefore outer drill bit 2 can be driven to rotate around interior drill bit 1, and outer drill bit 2 is opposite with the direction of rotation of interior drill bit 1.
Interior drill bit 1 carries out broken cutting to rock mass, and broken fragment is pressed into interior drill bit by the spiral wing on interior drill bit 1
In gap between the 2 indent conical surface of 1 rear cone and outer drill bit, fragment is by the spiral wing and the indent conical surface on rear cone later
Backpitch wing pulverize, to reach second-time breakage effect, last fragment enters in hollow drill 3, by hollow drill 3
Negative-pressure ward is gone out.Under the collective effect of inside and outside drill bit, make to enter back into after the fragment generated in tunneling process is pulverized hollow
Drilling 3 effectively prevents the blocking of hollow drill 3, substantially increases drivage efficiency.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although referring to above-described embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that: still the present invention can be modified or be waited
With replacement, without departing from the spirit or scope of the invention, or any substitutions, should all cover in power of the invention
In sharp claimed range.
Claims (7)
1. a kind of bilayer drill bit, which is characterized in that including interior drill bit, outer drill bit, preceding drilling rod, sleeve, hollow drill and planetary gear,
Wherein, sleeve covers on the outside of hollow drill, and hollow drill front end is stretched out except sleeve；
Interior drill bit is the spindle with former and later two conical surfaces, and outer drill bit is the annulus with the indent conical surface, and interior drill bit is located at outer brill
Centriciput, the rear cone bus of interior drill bit is parallel with outer drill bit indent cone element, and the outer diameter of outer drill bit is greater than the outer of interior drill bit
Diameter, the front end of drilling rod before interior drill bit is fixed on, the end of preceding drilling rod, which has, intersects cross bar, before intersection cross bar is fixed on hollow drill
It holds on inner wall；
There is ring gear on outer drill tip inner wall, there is outer gear ring on the outer wall of hollow drill front end, 2 are located at upper planet wheel
Between ring gear and outer gear ring, ring gear, planetary gear and outer gear ring form planetary gear train；
Outer chisel edge is stuck between the wheel shaft front end of planetary gear and hollow drill, before the wheel shaft end of planetary gear is fixed on sleeve
On end.
2. a kind of double-deck drill bit according to claim 1, which is characterized in that on former and later two circular conical surfaces of the interior drill bit
Spiral wing is distributed with.
3. a kind of double-deck drill bit according to claim 2, also there is drill lip on the spiral wing.
4. a kind of double-deck drill bit according to claim 1, which is characterized in that have on the indent conical surface of the outer drill bit anti-
Spiral wing.
5. a kind of double-deck drill bit according to claim 4, which is characterized in that have drill lip on the backpitch wing.
6. a kind of double-deck drill bit according to claim 1, which is characterized in that the planetary gear is 4,4 planet teeth
Equidistantly distributed is taken turns in the gap between the ring gear and the outer gear ring.
7. a kind of double-deck drill bit according to claim 1, which is characterized in that the intersection cross bar is two groups, two groups of intersections
Cross bar parallelly distribute on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811190009.8A CN109488210B (en) | 2018-10-12 | 2018-10-12 | Double-layer drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811190009.8A CN109488210B (en) | 2018-10-12 | 2018-10-12 | Double-layer drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109488210A true CN109488210A (en) | 2019-03-19 |
| CN109488210B CN109488210B (en) | 2021-02-05 |
Family
ID=65689526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811190009.8A Expired - Fee Related CN109488210B (en) | 2018-10-12 | 2018-10-12 | Double-layer drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109488210B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915602A (en) * | 2018-07-11 | 2018-11-30 | 江苏师范大学 | A kind of bilayer dust suction drill bit |
| CN112060357A (en) * | 2020-09-18 | 2020-12-11 | 周国华 | Building drilling equipment capable of discharging chips in hole |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021461A (en) * | 2000-07-12 | 2002-01-23 | Nittoc Constr Co Ltd | Swivel for double-pipe excavator |
| JP2004218289A (en) * | 2003-01-15 | 2004-08-05 | Shinnikko Kk | Double tube system hole drilling drill device |
| CN202850871U (en) * | 2012-10-27 | 2013-04-03 | 秦亚丛 | Double-bit drilling device for deep frozen earth of mine |
| CN103306606A (en) * | 2013-06-28 | 2013-09-18 | 中国地质大学（武汉） | Planetary gear train energy-saving dual-layer drill for drilling of deep oil gas well |
| CN203804282U (en) * | 2013-10-28 | 2014-09-03 | 苏州天健旋切技术有限公司 | Rotary spitting drill |
| CN106869806A (en) * | 2017-03-20 | 2017-06-20 | 吉林大学 | A kind of double drill bits of moment of torsion self-balancing nested type |
| CN206769819U (en) * | 2017-03-23 | 2017-12-19 | 安徽理工大学 | Broken screw thread deslagging bottom plate efficient drilling drill bit device in a kind of outer brill |
| CN207296875U (en) * | 2017-08-25 | 2018-05-01 | 苏州圣雷动力机械有限公司 | A kind of ground auger that there is balance to bore ground moment capacity |
-
2018
- 2018-10-12 CN CN201811190009.8A patent/CN109488210B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002021461A (en) * | 2000-07-12 | 2002-01-23 | Nittoc Constr Co Ltd | Swivel for double-pipe excavator |
| JP2004218289A (en) * | 2003-01-15 | 2004-08-05 | Shinnikko Kk | Double tube system hole drilling drill device |
| CN202850871U (en) * | 2012-10-27 | 2013-04-03 | 秦亚丛 | Double-bit drilling device for deep frozen earth of mine |
| CN103306606A (en) * | 2013-06-28 | 2013-09-18 | 中国地质大学（武汉） | Planetary gear train energy-saving dual-layer drill for drilling of deep oil gas well |
| CN203804282U (en) * | 2013-10-28 | 2014-09-03 | 苏州天健旋切技术有限公司 | Rotary spitting drill |
| CN106869806A (en) * | 2017-03-20 | 2017-06-20 | 吉林大学 | A kind of double drill bits of moment of torsion self-balancing nested type |
| CN206769819U (en) * | 2017-03-23 | 2017-12-19 | 安徽理工大学 | Broken screw thread deslagging bottom plate efficient drilling drill bit device in a kind of outer brill |
| CN207296875U (en) * | 2017-08-25 | 2018-05-01 | 苏州圣雷动力机械有限公司 | A kind of ground auger that there is balance to bore ground moment capacity |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915602A (en) * | 2018-07-11 | 2018-11-30 | 江苏师范大学 | A kind of bilayer dust suction drill bit |
| CN112060357A (en) * | 2020-09-18 | 2020-12-11 | 周国华 | Building drilling equipment capable of discharging chips in hole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109488210B (en) | 2021-02-05 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210119 Address after: 221000 area a, University Pioneer Park, 99 Daxue Road, Xuzhou high tech Industrial Development Zone, Jiangsu Province Applicant after: Xuzhou Fengtong Information Technology Co.,Ltd. Address before: 221136 Liuquan Town Industrial Park, Tongshan District, Xuzhou City, Jiangsu Province Applicant before: XUZHOU SANCHENG CASTING Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 Termination date: 20211012 |
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| CF01 | Termination of patent right due to non-payment of annual fee |